Machine for grinding pigments.



M. D. DUFFY & B. P. COSTELLO. MACHINE FOR GRlNDlNG PIGMENTS. APPLICATION 111.10 1uu115. 1914.

1,154,004. PatentedSept. 21, 1915.

4 SHEETS-SHEE'I l.

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attowe M. D. DUFFY & B. P. COSTELLO.

MACHINE FOR GRINDING PIGMENTS. APPLICATION FILED JULY I5. 1914.

PatentedSept. 21, 1915.

M. D. DUFFY & B. P. COSTELLO. MACHINE FOR camome PIGMENTS. APPLICATION FILED lULY l5. 19l4.

1.154.,004. PatentedSept. 21, 1915.

4 SHEETS-SHEET 3.

Y .H. w I S Z #8 /////////////4/// M. 0. DUFFY '& B. P. COSTELLO. MACHINE FOR GRINDING PIGMENTS. APPLICATION FILED IULY'I5. I914.

.Lfifififi, PatentedSept. 21, 1915.

4 SHEETS-SHEET 4.

MATHEW DOMNICK DUiF FY AND BARTLEY PATRICK COSTELLO, OF CINCINNATI, 0HIO.

OHIO.

MACHINE FOR GRINDING PIGMENTS.

Specification of Letters Patent. Patented Sept 21, 1915 Application filed July 15, 1914. Serial No. 851,113.

To all whom it may concern Be it known that we, MATHEW DOMNICK DUFFY and BARTLEY PATRICK COSTELLO, citizens of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Machines for GrindingPigments, of which the following is a specification. I

This invention relates to improvements in machines for grinding pigments for paints and has for its object to provide a machine which,'with one continuous operation will thoroughly grind; pigments to, a perfectly smooth paste.

Another object of the invention is to pro: vide a paint grinding mill having a fixed semi-cylindrical grinding bed and a cylindrical grinder thereon.

Another object of the invention is toprovide a grinding mill having a series of cylindrical grinders each having a scrape-r and means for simultaneously operating said scrapers. I

Still another object. of the inventionis to provide a grinding machine having .a series of grinding beds and means whereby said beds may be independently removed. .Still another object of the invention is to provide a grinding machine having a plurality of water-cooled grinding beds.

,With the above and other objects in view we have invented the "device illustrated in "the accompanying drawings in which- Figure 1, is an elevational view of our mill. view thereof. Fig. 3, is a detail elevational view of a grinding device separated from the mill proper, and Fig. 4, is a section taken on line 'A-A of Fig. 3. Fig.5, is a front elevational view of Fig. 1. Fig. 6, is an enlarged detail view of a scraper operating member. Like reference characters indicate like parts throughout the several views in which/ 1, indicates the frame of our mill in which are a series of boxes 2, 3 and 4, mounted in stepped relation. "These boxes are of just a size to receive the snugly fitting Water receptacles 5, 6, and 7, having semi-cylindrical upper walls 8, 9 and 10, in which are seated the grinding beds 11, 12 and 13, which are made preferably of esopha stone,

granite or steel or some other similar sub- Fig. .2, is a longitudinal sectional.

. they are rotated.

The members 5, 6 and 7, are mounted upon brackets 24, 25 and 26, which terminate in screw collars 27, 28 and 29, which are screwed upon the upper ends of the vertical shafts 30, 31 and 32, which rest upon the bearings 33, 34 and 35, which carry bevel gears 36, 37 and 38, which mesh with the bevel gears 39, 40 and 41, on the horizontal shafts 42, 43 and 44, upon the outer ends of which are hand wheels 45, 46 and 47, where by said horizontal shafts may be operated to in turn operate the vertical shafts operating in the collars 27, 28 and 29, whereby the members 5, 6 and 7, may be raised and lowered in order to regulate the grinding." By rotating the shafts 30, 31 or 32, until they become disconnected with the collars 27, 28 and 29, said shafts may be removed from the mill and the members 5, 6 or 7,

' removed in order that the beds 11, 12 or 13,

may be cleansed or renewed if worn out. The beds 11,12 and 13, are each provided with end flanges 48 and49, inorder to prevent the material being ground from spilling from the sides of said beds.

Pivotally mounted upon uprights 50 and 51., adjacent each of said cylinders 18, 19 and 20,-are rods 52, 53 and 54, having right angular ends 58, 59 and 60, which carry scrapers 55, 56 and-57. Springs 61, 62 and 63, mounted between said members 58, 59 and 60, and the members 64, 65 and 66, which normally hold said scrapers firmly but resiliently againstsaid cylinders 18, 19 and 20, whereby the paint adhering to the surface of said cylinders will be scraped therefrom and into the troughs 67, 68 and 69, from which it will be fed to the next succeeding cylinder bed or to a suitable receptacle (not shown). A r0 70, connected by levers 71, 7 2 and,7 3, to the members 64, 65 and 66, is adapted to move said members simultaneously in one direction or another in order to move said scrapers into or out of contact with said cylinders 18, 19 and 20. The lever 73 is providedwith a hand grip 74 and a pawl 75, operating the dog 76 adapted to engage with the teeth 77, where--.

by said rod 70, and its scrapers, may be held in desired position.

Thermandrels 21, 22 and 23, are provided with gears 78, 79 and 80, connected by pmions 81, and 82, the gear 7 8 being driven by a transmission gear 83, which is dr ven by a gear 84, and a driving shaft-85, whereby all of said cylinders 18, 19 and 20, are simultaneously operated. The material tobe ground is fed from the hopper 86 to the chute 87, and thence to. the first bed 11.

A pigment and oils'are mixed in the hopper 86 and 'fed from there to the bed 11 where it is ground between'said bed' and the cylinder 18, to which the material will adhere and from which itis scraped into the chute 67, and fed to the bed 12, where it inder 20, the material is in a thoroiighly ground mass and is in proper=condition for use.

Having now described our invention, that which we claim to be new and desire to procure by Letters Patent is U l '1. A pigment grinder consisting of. a se-\ ries of horizontally disposed cylindrical grinders having smooth surfaces and semiand water cylindrical removable beds; cooled supports for said beds.

. 2. A pigment grinder consisting 'of a series of horizontally disposed cylindrical grinders'having smooth surfaces and semi-, cylindrical removable beds, and water cooled supports for said beds, said supports being vertically adjustable. I

3. A pigment grinder conslsting of a se-.

ries of horizontally disposed cylindrical grinders having smooth surfaces and semicylindrical removable beds, water cooled supports for said beds, said supports being vertically adjustable, and vertical shafts upon which said supports are mounted.

4. A pigment grinder consisting of a series of horizontally disposed cylindrical grinders having smooth surfaces and semicylindrical removable beds, water cooled supports for said beds, said supports being vertically adjustable, and vertical shafts upon which said supports are mounted, said shafts being the means whereby said supports are adjusted. 5. A pigment grinder consisting of a series of horizontally disposed cylindrical grinders having-smooth surfaces and semicylindrical removable beds, water cooled supports for'said beds, said supports being /vertically adjustable, and vertical shafts upon which said supports are mounted, said shafts being the means whereby said supports are adjusted, and said cylinders being arranged in stepped relation.

6. A pigment grinder consisting of a series of horizontally disposed cylindrical grinders having smooth surfaces and semicylindrical removable beds, water cooled vertically adjustable, vertical shafts upon which said supports are mounted, said shafts being the means whereby said supports are adjusted, saidcylinders being arranged in n stepped relation, and means whereby said pigment may be transferred from one grinder to another, said means. consisting of troughs. connecting said grinders. 8.- A pigment grinder consistingof a-=s'e ries of horizontally disposed cylindrical grinders having smooth'surfaces and semi- .cylindrical removable beds, water cooled supports forfsaid beds, said supports being vertically adjustable, vertical shafts upon which said supports are mounted, said shafts being the means whereby said supports are adjusted, said cylinders being arranged in stepped relation, means whereby said pigment may be transferred from one grinder to another, and said means consisting of troughs connecting said grinders, and scrapers for saidgrinders. 1

9. A pigment grinder consisting of a series' of horizontally disposed cylindrical grinders having smooth surfaces and semi- 1 cylindrical removable beds, water cooled supports for said beds, said supports being vertically adjustable, vertical. shafts upon which said supports are adjustedfsaid cylinders being arranged in stepped relation, means whereby said pigment may betraiisferred from one grinder to another, said means consisting of troughs connecting said grinders, and scrapers forsaid grinders,-and

means for operating said scrapers.

" 10. A pigment grinder consisting of a series of horizontally disposed cylindrical grinders having smooth surfaces and semicylindrical removable beds, water cooled supports for said beds, said supports being vertically adjustable, vertical shafts upon which said supports are adjusted, saidpylinders being arranged in stepped relation, means whereby said pigment may be transferred from one grinder to another, said means consisting of troughs connecting said grinders, scrapers for said grinders, and means for operating said scrapers simultaneously. I

11. A pigment grinder consisting of a series of horizontally disposed cylindrical grinders having smooth surfaces and semi- .cylindrical removable beds, water cooled.

supports for said beds, said supports being vertically adjustable, vertical shafts upon which said supports are adjusted, said cyl-' inders being arranged in stepped relation,

means whereby said plgment may be trans-.

ferred, from one grinder to another, said means consisting of troughs connecting said grinders, said scrapers for said grinders, and means for operatingsaid scrapers simultaneously, means for operating said shafts.

12. A pigment grinder consisting of a series of horizontally disposed cylindrical grinders having smooth surfaces and semicylindrical removable beds, water cooled.

supports for said beds, said supports being vertically adjustable, vertical shafts upon which said supports are adjusted, said cylinders being arranged in stepped relation, means whereby said pigment may be transferred from one grinder to another, said means consisting of troughs connecting said grinders, said scrapers for: said grinders, means for operating said scrapers simultaneously, and means for operating said shafts, independently.

13. The described device consisting of cylinders arranged in stepped relation, bedsfor said cylinders and vertically adjustable supports for said beds, said cylinders carry ing'gears and pinions connecting said gears,

and troughs connecting said'cylinders, and scrapers for each'of said cylinders adapted to scrape matter therefrom into said troughs. I

14. The described device consisting of cylinders arranged in stepped-relation, beds for said cylinders and vertically adjustable supports for said beds, said cylinders carrying gears and pinions connecting said gears,

troughs connecting said cylinders, scrapers for each of said cylinders adapted to scrape matter therefrom into said troughs, and means for simultaneously operating said scrapers.

15 The described device consisting of cylinders arranged in stepped relation, beds for said cylinders and vertically adjustable supports for said beds, said'cylinders carrying gears and pinions connecting said gears, troughs connecting said cylinders,

scrapers for each'of said cylinders adapted to scrape matter therefrom into said troughs,

and means for simultaneously operating said scrapers, each of said scrapers being spring controlled.

16. The described device consisting of cylinders arranged in stepped relation, beds for said cylinders and vertically adjustable supports for said beds, said cylinders carrying gears and pinions connecting said gears, troughs connecting said cylinders, scrapers for each of said cylinders adapted to scrape matter therefrom into said troughs, and means for simultaneously operating said scrapers, each of said scrapers being spring controlled, and said supports having water boxes for cooling said beds.

17. The described device consisting of cylinders arranged in stepped relation, beds for said cylinders and vertically adjustable supports for said beds, said cylinders carrying gears and pinions connecting said gears,

troughs connecting said cylinders, scrapers foreach'of said cylinders adapted to scrape matter therefrom into said troughs,

means for simultaneously operating said trolled, said supports having water' boxes' for cooling said beds, a vertical shaft for supporting .each of said boxes, and screw connections between said shafts and boxes whereby said vertical. adjustment is" obtained.

19. The described device consisting of cylinders arranged in stepped relation, beds for said cylinders and vertically adjustable supports for said beds, said cylinders carrying gears and pinions connecting said gears, troughs'connecting said cylinders, scrapers for each of said cylinders'adapted to scrape matter therefrom into said troughs, means for simultaneously operating said. scrapers,

each of said scrapers being spring controlled, said supports having Water'boxes for cooling said beds, a vertical shaft for supporting each of said boxes, screw connections between said shafts and boxes whereby said vertical adjustment is ob-,

mined, and independent means for operating each of said shafts.

20. The described device consisting of cylinders arranged .in stepped relation, beds forsaid cylinders and vertically adjustable supports for said beds, said cylinders carrying gears andpinions connecting said gears,

'troughs connecting said cylinders, Scrapers 21. The described d-eviceconsisting of cyl-' inders arranged in stepped relation, beds for said cylinders and vertically adjustable supports for said beds, said cyl nders carrying gears and pinions connecting said gears,

troughs connecting said cylinders, scrapers for each of said cylinders adapted to scrape matter therefrom into said troughs, means for simultaneously operating said scrapers, each bf said scrapers -being spring 'controlled, said supports having water boxes for cooling said'bed s, a vertlcal shaft for supporting each of said boxes, screw connections between said shafts and boxes whereby said vertical adjustment is obtained, and independent means for operat ing each of said shafts, said rollers having smooth surfaces, and said beds having grooves.

22. The described grinding mill consisting of aserie's of cylindrical grinders arranged in stepped relation, said cylinders being horizontally disposed, semi-cylindrical beds in which said cylinders rotate, said beds being adjustable, water boxes upon which said beds are mounted, said boxes having semi-cylindrical upper surfaces to receive said beds, means for adjusting said beds, said means consisting of screw shafts, said shafts being vertically disposed, means for rotatingisaid shafts, scrapers foreach of said cylinders, means for simultaneously rotating said cylinders, and boxes in which said beds are vertically movable, the upper surfaces of said beds being corrugated, and said water boxes being supported by said shafts 23. A',pigment grinder consisting of a series of horizontally disposed cylindrical grinders, a suitable bed for each cylindrical grinder, a scraper for each cylindrical grinder, and means connecting said scrapers for simultaneously adjusting said scrapers relative to their respective cylindrical grinders, each scraper being provided with a spring whereby it is firmly but resiliently held against its cylinder.

In testimony whereof we afiix our signatures in presence of two witnesses.

. MATHEW DOMNICK DUFFY.

BARTLEY PATRICK COSTELLO. 

